Yoji Kondo was a Japanese-American astrophysicist and fan who also wrote SF under the pseudonym Eric Kotani.

He edited Requiem: New Collected Works by Robert A. Heinlein and Tributes to the Grand Master (1992), and contributed to New Destinies, Vol. VI/Winter 1988 — Robert A. Heinlein Memorial Issue (1988), after his friend and fellow SF author, Robert A. Heinlein, died in 1988.